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Optical bistability under nonresonant excitation in spinor polariton condensates

Optical bistability under nonresonant excitation in spinor polariton condensates
Optical bistability under nonresonant excitation in spinor polariton condensates
We realise bistability in the spinor of polariton condensates under non-resonant optical excitation and in the absence of biasing external fields. Numerical modelling of the system using the GinzburgLandau equation with an internal Josephson coupling between the two spin components of the condensate qualitatively describes the experimental observations. We demonstrate that polariton spin bistability strongly depends on the condensate’s overlap with the exciton reservoir by tuning the excitation geometry and sample temperature. We obtain non-collapsing bistability hysteresis loops for a record range of sweep times, [10µs, 1s], offering a promising route to spin switches and spin memory elements.
1079-7114
1-5
Pickup, Lucy
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Kalinin, Kirill
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Askitopoulos, Alexis Marcel
2365a936-bc12-47bc-94aa-e186b2bc0390
Hatzopoulos, Zacharias
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Savvidis, P G
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Berloff, Natalia G.
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Lagoudakis, Pavlos
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Pickup, Lucy
fedf5379-5c41-4e77-8269-2e6e046df2ad
Kalinin, Kirill
6e4d1521-96b9-4b3d-a9f1-b7be13481456
Askitopoulos, Alexis Marcel
2365a936-bc12-47bc-94aa-e186b2bc0390
Hatzopoulos, Zacharias
6803e5ae-1159-45e0-ae5a-3d279acbc0f3
Savvidis, P G
7706c3c3-47a2-491d-a173-d40f9cf7d9c0
Berloff, Natalia G.
de2658f8-d78b-4552-ac62-33290762b797
Lagoudakis, Pavlos
ea50c228-f006-4edf-8459-60015d961bbf

Pickup, Lucy, Kalinin, Kirill, Askitopoulos, Alexis Marcel, Hatzopoulos, Zacharias, Savvidis, P G, Berloff, Natalia G. and Lagoudakis, Pavlos (2018) Optical bistability under nonresonant excitation in spinor polariton condensates. Physical Review Letters, 120 (22), 1-5, [225301]. (doi:10.1103/PhysRevLett.120.225301).

Record type: Article

Abstract

We realise bistability in the spinor of polariton condensates under non-resonant optical excitation and in the absence of biasing external fields. Numerical modelling of the system using the GinzburgLandau equation with an internal Josephson coupling between the two spin components of the condensate qualitatively describes the experimental observations. We demonstrate that polariton spin bistability strongly depends on the condensate’s overlap with the exciton reservoir by tuning the excitation geometry and sample temperature. We obtain non-collapsing bistability hysteresis loops for a record range of sweep times, [10µs, 1s], offering a promising route to spin switches and spin memory elements.

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Optical bistability under nonresonant excitation in spinor polariton - Accepted Manuscript
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Accepted/In Press date: 27 March 2018
e-pub ahead of print date: 30 May 2018
Published date: 1 June 2018

Identifiers

Local EPrints ID: 419704
URI: http://eprints.soton.ac.uk/id/eprint/419704
ISSN: 1079-7114
PURE UUID: d1d319f0-2165-4c2a-8bcd-f0e4fbf14f14
ORCID for Lucy Pickup: ORCID iD orcid.org/0000-0002-1728-3145

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Date deposited: 19 Apr 2018 16:30
Last modified: 17 Dec 2019 01:31

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Contributors

Author: Lucy Pickup ORCID iD
Author: Kirill Kalinin
Author: Alexis Marcel Askitopoulos
Author: Zacharias Hatzopoulos
Author: P G Savvidis
Author: Natalia G. Berloff

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